Drag 组件

[yangjinjun3]

功能、基本交互测试
1、拖动时控制台报错
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文档完整性验证
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props 所有属性测试
1、无法自定义class和style
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props 异步修改组件是否动态更新
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emits 所有事件测试
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npm run build 子组件是否被构建
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其它

[xiaoyatong]

1. 拖动时，
   touchMove @ drag.tsx:94
   drag.tsx:94 [Intervention] Ignored attempt to cancel a touchmove event with cancelable=false, for example because scrolling is in progress and cannot be interrupted.